/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --red: #E63946;
    --blue: #1E3A8A;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --dark-gray: #2D2D2D;
    --text-gray: #666666;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.logo-container a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-container a:hover {
    transform: scale(1.05);
}

.logo-h {
    display: flex;
    gap: 3px;
    height: 45px;
    position: relative;
    align-items: flex-end;
}

.h-left, .h-right {
    width: 16px;
    background: linear-gradient(180deg, #2563EB 0%, #1E3A8A 100%);
    height: 100%;
    position: relative;
    animation: slideDown 0.8s ease-out;
    box-shadow: 
        0 2px 8px rgba(30, 58, 138, 0.3),
        inset -2px 0 4px rgba(255, 255, 255, 0.1),
        inset 2px 0 4px rgba(0, 0, 0, 0.1);
    border-radius: 2px 2px 0 0;
}

.h-left::before, .h-right::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 10px solid #1E3A8A;
    filter: drop-shadow(0 2px 4px rgba(30, 58, 138, 0.3));
    animation: growTriangle 0.8s ease-out 0.3s forwards;
}

.h-center {
    width: 12px;
    background: linear-gradient(180deg, #F43F5E 0%, #E63946 100%);
    height: 100%;
    position: relative;
    animation: slideDown 0.8s ease-out 0.2s both;
    box-shadow: 
        0 2px 8px rgba(230, 57, 70, 0.3),
        inset -2px 0 4px rgba(255, 255, 255, 0.1),
        inset 2px 0 4px rgba(0, 0, 0, 0.1);
    border-radius: 2px 2px 0 0;
}

.h-center::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 10px solid #E63946;
    filter: drop-shadow(0 2px 4px rgba(230, 57, 70, 0.3));
    animation: growTriangle 0.8s ease-out 0.5s forwards;
}

.logo-text {
    display: flex;
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: 3px;
    animation: fadeIn 0.8s ease-out 0.6s both;
    align-items: center;
    text-transform: uppercase;
}

.logo-3h {
    color: var(--red);
}

.logo-group {
    color: var(--blue);
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--text-gray);
    font-weight: 400;
    margin-left: 10px;
    /* margin-top: 35px; */
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--red);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--red);
}

.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.construction-grid {
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(30, 58, 138, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 58, 138, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 2rem;
    animation: fadeInUp 1s ease-out;
}

.hero-logo {
    margin-bottom: 2rem;
}

.logo-h-large {
    display: flex;
    gap: 4px;
    height: 120px;
    justify-content: center;
    margin-bottom: 1rem;
    position: relative;
}

.h-left-large, .h-right-large {
    width: 35px;
    background: var(--blue);
    position: relative;
    animation: slideDown 1s ease-out;
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.h-left-large::before, .h-right-large::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 17.5px solid transparent;
    border-right: 17.5px solid transparent;
    border-bottom: 15px solid var(--blue);
    animation: growTriangle 1s ease-out 0.3s forwards;
}

.h-center-large {
    width: 25px;
    background: var(--red);
    position: relative;
    animation: slideDown 1s ease-out 0.2s both;
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.h-center-large::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 12.5px solid transparent;
    border-right: 12.5px solid transparent;
    border-bottom: 15px solid var(--red);
    animation: growTriangle 1s ease-out 0.5s forwards;
}

.logo-text-large {
    display: flex;
    justify-content: center;
    font-weight: 800;
    font-size: 3.5rem;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    animation: fadeIn 1s ease-out 0.6s both;
}

.logo-3h-large {
    color: var(--red);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.logo-group-large {
    color: var(--blue);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.logo-banner {
    background: var(--red);
    color: var(--white);
    padding: 0.8rem 2rem;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 2px;
    display: inline-block;
    animation: slideUp 1s ease-out 0.8s both;
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--dark-gray);
    animation: fadeInUp 1s ease-out 1s both;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 1.4s both;
    /* margin-bottom: 50px; */
}

.btn {
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--red);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--blue);
    border: 2px solid var(--blue);
}

.btn-secondary:hover {
    background: var(--blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--blue);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 10px;
    background: var(--blue);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--red);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-top: 1.5rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    opacity: 0;
    transform: translateY(30px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease-out;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--red);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.2) rotate(5deg);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: var(--light-gray);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    height: 400px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.5s ease;
}

.project-card.visible {
    opacity: 1;
    transform: scale(1);
}

.project-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--blue) 0%, var(--red) 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

/* Varied gradients for different project cards */
.all-projects-grid .project-card:nth-child(1) .project-image {
    background: linear-gradient(135deg, #1E3A8A 0%, #E63946 100%);
}

.all-projects-grid .project-card:nth-child(2) .project-image {
    background: linear-gradient(135deg, #E63946 0%, #1E3A8A 100%);
}

.all-projects-grid .project-card:nth-child(3) .project-image {
    background: linear-gradient(135deg, #1E3A8A 0%, #4A90E2 100%);
}

.all-projects-grid .project-card:nth-child(4) .project-image {
    background: linear-gradient(135deg, #E63946 0%, #FF6B6B 100%);
}

.all-projects-grid .project-card:nth-child(5) .project-image {
    background: linear-gradient(135deg, #4A90E2 0%, #1E3A8A 100%);
}

.all-projects-grid .project-card:nth-child(6) .project-image {
    background: linear-gradient(135deg, #FF6B6B 0%, #E63946 100%);
}

.all-projects-grid .project-card:nth-child(7) .project-image {
    background: linear-gradient(135deg, #1E3A8A 0%, #6C63FF 100%);
}

.all-projects-grid .project-card:nth-child(8) .project-image {
    background: linear-gradient(135deg, #E63946 0%, #FF8C42 100%);
}

.all-projects-grid .project-card:nth-child(9) .project-image {
    background: linear-gradient(135deg, #4A90E2 0%, #1E3A8A 100%);
}

.all-projects-grid .project-card:nth-child(10) .project-image {
    background: linear-gradient(135deg, #6C63FF 0%, #1E3A8A 100%);
}

.all-projects-grid .project-card:nth-child(11) .project-image {
    background: linear-gradient(135deg, #FF8C42 0%, #E63946 100%);
}

.all-projects-grid .project-card:nth-child(12) .project-image {
    background: linear-gradient(135deg, #1E3A8A 0%, #E63946 100%);
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.project-card:hover .project-image::before {
    left: 100%;
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 2rem;
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.project-card:hover .project-overlay {
    transform: translateY(0);
}

.project-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-category {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 600;
}

.projects-button-container {
    text-align: center;
    margin-top: 3rem;
    animation: fadeInUp 1s ease-out 1.6s both;
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--red);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-gray);
    font-weight: 600;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red);
    color: var(--white);
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.contact-item p {
    color: var(--text-gray);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 1rem;
}

.logo-h-small {
    display: flex;
    gap: 2px;
    height: 30px;
}

.h-left-small, .h-right-small {
    width: 9px;
    background: var(--blue);
    position: relative;
}

.h-left-small::before, .h-right-small::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 4.5px solid transparent;
    border-right: 4.5px solid transparent;
    border-bottom: 5px solid var(--blue);
}

.h-center-small {
    width: 6px;
    background: var(--red);
    position: relative;
}

.h-center-small::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 0;
    width: 0;
    height: 0;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-bottom: 5px solid var(--red);
}

.logo-text-small {
    display: flex;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 1px;
}

.logo-3h-small {
    color: var(--red);
}

.logo-group-small {
    color: var(--blue);
}

.footer-content p {
    color: rgba(255, 255, 255, 0.7);
}

.back-home-link {
    display: inline-block;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
}

.back-home-link:hover {
    color: var(--white);
    transform: translateX(-5px);
}

/* Projects Page Styles */
.projects-header {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, var(--blue) 0%, var(--red) 100%);
    color: var(--white);
    text-align: center;
    margin-top: 70px;
}

.projects-header-content {
    animation: fadeInUp 1s ease-out;
}

.projects-main-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--white);
}

.projects-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.all-projects {
    padding: 80px 0;
    background: var(--light-gray);
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 2rem;
    background: var(--white);
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    font-weight: 600;
    color: var(--text-gray);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.filter-btn:hover {
    border-color: var(--red);
    color: var(--red);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.all-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.all-projects-grid .project-card {
    animation: fadeInScale 0.6s ease-out;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.all-projects-grid .project-card.hidden {
    display: none !important;
    opacity: 0;
    transform: scale(0.9);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Animations */
@keyframes slideDown {
    from {
        height: 0;
        opacity: 0;
    }
    to {
        height: 100%;
        opacity: 1;
    }
}

@keyframes growTriangle {
    from {
        width: 0;
        opacity: 0;
    }
    to {
        width: 100%;
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        top: 10px;
        opacity: 1;
    }
    100% {
        top: 30px;
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .logo-text-large {
        font-size: 2.5rem;
    }

    .logo-h-large {
        height: 80px;
    }

    .h-left-large, .h-right-large {
        width: 25px;
    }

    .h-center-large {
        width: 18px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }
}